SPECIFICATIONS
ELECTRICAL
At +25°C and rated power supplies, unless otherwise noted.
ADC71J, K
TYP
ADC71A, B
TYP
MODEL
MIN
MAX
MIN
MAX
UNITS
RESOLUTION
16
16
Bits
INPUTS
ANALOG
Voltage Ranges: Bipolar
Unipolar
±2.5, ±5, ±10
0 to +5, 0 to +10,
0 to +20
±2.5, ±5, ±10
0 to +5, 0 to +10,
0 to +20
V
V
Input Impedance (Direct Input)
0 to +5V, ±2.5V
0 to +10V, ±5.0V
2.5
5
10
2.5
5
10
kΩ
kΩ
kΩ
0 to +20V, ±10V
DIGITAL(1)
Convert Command Positive pulse 50ns wide (min) trailing edge (“1” to “0” initiates conversion)
1
Logic Loading
TTL Load
TRANSFER CHARACTERISTICS
ACCURACY
Gain Error(2)
Offset(2): Unipolar
Bipolar
Linearity Error: K, B
J, A
Inherent Quantization Error
Differential Linearity Error
±0.1
±0.05
±0.1
±0.2
±0.1
±0.2
±0.003
±0.006
±0.1
±0.05
±0.1
±0.2
±0.1
±0.2
±0.003
±0.006
%
% of FSR(3)
% of FSR
% of FSR
% of FSR
LSB
±1/2
±0.003
±1/2
±0.003
% of FSR
POWER SUPPLY SENSITIVITY
±15VDC
+5VDC
0.003
0.001
0.003
0.001
% of FSR/%VS
% of FSR/%VS
CONVERSION TIME(4)
14 Bits
50
50
µs
WARM-UP TIME
5
*
min
DRIFT
Gain
Offset: Unipolar
Bipolar
±10
±2
±8
±15
±4
±10
±3
*
*
±2
±10
±2
ppm/°C
ppm of FSR/°C
ppm of FSR/°C
ppm of FSR/°C
±5
Linearity
±2
No Missing Codes Temp Range
J, A (13 Bits)
K, B (14 Bits)
0
0
+70
+70
–25
–25
+85
+85
°C
°C
OUTPUT
DIGITAL DATA
(All Codes Complementary)
Parallel Output Codes(5): Unipolar
Bipolar
CSB
COB, CTC(6)
Output Drive
Serial Data Code (NRZ)
Output Drive
2
2
*
*
TTL Loads
TTL Loads
CSB, COB
Status
Logic “1” During Conversion
Status Output Drive
Clock Output Drive
Frequency(7)
2
2
2
2
TTL Loads
TTL Loads
kHz
280
6.3
*
INTERNAL REFERENCE VOLTAGE
Max External Current with
No Degradation of Specs
Temp Coefficient
6.0
6.6
6.0
6.3
6.6
V
±200
±10
±200
*
µA
ppm/°C
POWER SUPPLY REQUIREMENTS
Power Consumption
655
±15
+5
+10
–28
+17
655
mW
VDC
VDC
mA
mA
mA
Rated Voltage, Analog
Rated Voltage, Digital
Supply Drain +15VDC
Supply Drain –15VDC
Supply Drain +5VDC
±11.4
+4.75
±16
+4.75
+15
–35
+20
*
*
*
*
*
*
*
*
*
*
*
*
TEMPERATURE RANGE
Specification
Operating (Derated Specs)
Storage
0
–25
–55
+70
+85
+125
–25
–55
–55
+85
+125
+125
°C
°C
°C
NOTES: (1) CMOS/TTL compatible, i.e., Logic “0” = 0.8V, max Logic “1” = 2.0V, min for inputs. For digital outputs Logic “0” = +0.4V, max Logic “1” = 2.4V min.
(2) Adjustable to zero. (3) FSR means Full Scale Range. For example, unit connected for ±10V range has 20V FSR. (4) Conversion time may be shortened with
“Short Cycle” set for lower resolution, see “Additional Connections Required” section. (5) See Table I. CSB = Complementary Straight Binary. COB = Complementary
Offset Binary. CTC = Complementary Two’s Complement. (6) CTC coding obtained by inverting MSB (Pin 1).
®
ADC71
2
BB [ BURR-BROWN CORPORATION ]
